/*
 * Copyright (C) 2023 HiHope Open Source Organization .
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

 #include <stdio.h>
 #include <unistd.h>
 
 #include "ohos_init.h"
 #include "cmsis_os2.h"
 #include "iot_gpio.h"
 #include "hi_io.h"

 //按键为14

 #define LED_TASK_GPIO    6 //单个的红灯
 #define IOT_GPIO_KEY     14
 #define DELAY_TICKS_30  (30)
 #define LED_TASK_STACK_SIZE 512
 #define LED_TASK_PRIO   (25)
 #define GPIO_HIGH       (1)
 #define GPIO_LOW        (0)
 
 enum LedState {
     LED_ON = 0,
     LED_OFF,
     LED_SPARK,
 };
 
 enum LedState g_ledState = LED_SPARK;
 static int g_count = 100;
 
 static void *LedTask(void)
 {
     while (g_count) {
         switch (g_ledState) {
             case LED_ON:
                 IoTGpioSetOutputVal(LED_TASK_GPIO, GPIO_LOW);
                 osDelay(DELAY_TICKS_30);
                 break;
             case LED_OFF:
                 IoTGpioSetOutputVal(LED_TASK_GPIO, GPIO_HIGH);
                 osDelay(DELAY_TICKS_30);
                 break;
             case LED_SPARK:
                 IoTGpioSetOutputVal(LED_TASK_GPIO, GPIO_LOW);
                 osDelay(DELAY_TICKS_30);
                 IoTGpioSetOutputVal(LED_TASK_GPIO, GPIO_HIGH);
                 osDelay(DELAY_TICKS_30);
                 break;
             default:
                 osDelay(DELAY_TICKS_30);
                 break;
         }
     }
 
     return NULL;
 }
 
 static void OnButtonPressed(void)
 {
     enum LedState nextState = LED_SPARK;
     switch (g_ledState) {
         case LED_ON:
             nextState = LED_OFF;
             break;
         case LED_OFF:
             nextState = LED_ON;
             break;
         case LED_SPARK:
             nextState = LED_OFF;
             break;
         default:
             break;
     }
 
     g_ledState = nextState;
     g_count--;
 }
 
 static void LedExampleEntry(void)
 {
     osThreadAttr_t attr;
 
     IoTGpioInit(LED_TASK_GPIO);
     IoTGpioSetDir(LED_TASK_GPIO, IOT_GPIO_DIR_OUT);
  
     IoTGpioInit(IOT_GPIO_KEY);
     hi_io_set_func(IOT_GPIO_KEY, GPIO_LOW);
     IoTGpioSetDir(IOT_GPIO_KEY, IOT_GPIO_DIR_IN);
     hi_io_set_pull(IOT_GPIO_KEY, GPIO_HIGH);
 
     IoTGpioRegisterIsrFunc(IOT_GPIO_KEY, IOT_INT_TYPE_EDGE,
         IOT_GPIO_EDGE_FALL_LEVEL_LOW,
         OnButtonPressed, NULL);
 
     attr.name = "LedTask";
     attr.attr_bits = 0U;
     attr.cb_mem = NULL;
     attr.cb_size = 0U;
     attr.stack_mem = NULL;
     attr.stack_size = LED_TASK_STACK_SIZE;
     attr.priority = LED_TASK_PRIO;
 
     if (osThreadNew((osThreadFunc_t)LedTask, NULL, &attr) == NULL) {
         printf("[LedExample] Falied to create LedTask!\n");
     }
 }
 SYS_RUN(LedExampleEntry);